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Metal-cavity surface-emitting microlaser at room temperature

Lu, Chien-Yao; Chang, Shu-Wei; Chuang, Shun Lien; Germann, Tim David; Bimberg, Dieter

We propose and realize a substrate-free metal-cavity surface-emitting microlaser with both top and sidewall metal and a bottom distributed Bragg reflector as the cavity structure. The transfer-matrix method is used to design the laser structure based on the round-trip resonance condition inside the cavity. The laser is 2.0𝜇m in diameter and 2.5𝜇m in height, and operates at room temperature with continuous-wave mode. Flip-bonding the device to a silicon substrate with a conductive metal provides efficient heat removal. A high characteristic temperature about 425 K is observed from 10 to 27°C.
Published in: Applied Physics Letters, 10.1063/1.3455316, American Institute of Physics (AIP)
  • This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Appl. Phys. Lett. 96, 251101 (2010) and may be found at https://doi.org/10.1063/1.3455316.